Die-seaming machine



(No Model.)

F. A. WALSH.

4 DIE SEAMING MACHINE. No. 445,740.

Patented Feb. 3,1891.

(fitter wag) UNITED STATES PATENT OFFICE.)

FRANCIS A. WALSII, OF MILWAUKEE, IVISCONSIN.

DlE-SEAMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 445,740, dated February3, 1891.

Original application filed April 23, 1889, Serial No. 308,317. 332,268.

.To aZZ whom it may concern:

Be it known that I, FRANCIS A. WALsH, of Milwaukee, in the county ofMilwaukee, and in the State of lVisconsimhave invented certain new anduseful Improvements in Die- Seaming Machines; and I do hereby declarethat the following is a full, clear, and exact description thereof.

My invention relates to die-seaming machines, beinga division of myapplication, No.

. 308,317, filed April 23, 1889; and it consists in certainpeculiarities of construction and combination of parts,to be hereinafterdescribed with reference to the accompanying drawings,

and subsequently claimed.

In the drawings, Figure 1 represents a partial vertical transversesection of my machine at one stage of its operation; Fig.2, an endelevation of the same, illustrating another stage of the operation; Fig.3, a partial vertical transverse section illustrating still anotherstage of the operation, and Fig. 4 a similar View illustrating thecompletion of the operation.

Referring by letter to the drawings, A represents a pressure-block, anddovetailed or otherwise suitably secured to this pressureblock is ananvil B, the latter being provided with a recess 1), for the purpose tobe hereinafter described.

' Opposed to the anvil B is another anvil O, dovetailed or otherwisesuitably secured to a n -shaped head D, that straddles a horn E, thelatter anvil being smoothupon its face and provided with an opening thatis engaged by a gage-pin c, this gage-pin being supported by a spring d,that rests upon a screw-plug e, inserted in said head.

The horn E is provided with a recess for the reception of a spiralspring F, that normally supports the head D,and the ends of this headare shaped to form dies G H, opposed to dies I J in lateral extensions fg of said horn, the latter being provided with guide-screws h forengagement with slots t'in said head.

Fitted in the horn E are adjustable stems K, provided with cam-heads j,the latter being preferably recessed to receive the edges of asheet-metal blank.

In the operation of the machine above de- Y I claim as new, and desireDivided and this application filed December 2, 1889- Serial No (Nomodel.)

scribed a sheet-metal blank L has the edges thereof laid in against thecam-heads j on the stems K, as shown in Fig. 1, and the head D beingpushed down by the pressure-block A, said edges of the blank are actedupon by the dies G I H J to form opposing flanges m at, as shown inFig.2, the width of these flanges being gaged by the adjustment of saideamheads. The flanges m n are now hooked together and placed on theanvil 0 against the gage-pin c, as shown in Fig. 3, and at the nextstroke of the pressure-block A these united flanges are laid down by therecessed portion 19 of the anvil B to complete a seam, as shown by Fig.4, it being understood that at each stroke of said pressure-block thereis a yield of the spring F and said gage-pin. The anvils B C may bereversed, accordingly as the seam is wanted upon the inner or outer sideof blank L, or said anvils may be omitted and the work done by theopposing faces oif'the pressure-block and head.

' Having thus described my invention, what to secure by Letters Patent,is

1. In a die-seaming machine, a pressureblock, a yielding head arrangedto oppose the pressure-block and having furcations terminated in dies,and dies opposed to those on the head, substantially as set forth.

2. In a die-seaming machine, a pressureblock provided with aseam-closing anvil, a yielding head arranged to oppose thepressure-block and having fureations terminated in flanging-dies, andsimilar dies opposed to those on the head, substantially as set forth.

3. In a die-seaming machine, a pressureblock, a yielding head arrangedto oppose the pressure-block and having furcations termithose on thehead, and gages arranged adjacent to these other dies, substantially asset forth.

4. In a die-seaming machine, a horn pro vided with lateral extensionshaving dies therein, a yielding head astraddle of the horn and providedwith dies, the latter being opposed to those in the lateral extensionsof said horn, and a pressure-block opposed to the head, substantially asset forth.

5. In a die-seaming machine, a horn pro nated in dies, other diesarranged to oppose v vided with lateral extensions having dies therein,a spring-controlled head astraddle of the horn and provided with slots,stops on the horn for engagement With the slots, dies on the headopposed to those in the lateral extensions of the horn, and apressure-block opposed to the head, substantially as set forth.

6. In a die'seaming machine, a horn provided with lateral extensionshaving dies therein, stems adjustable in these lateral extensions andprovided with cam-heads, a yielding head astraddle 0f the horn andprovided with dies, the latter being opposed to those in said lateralextensions of the horn, and apressure-block opposed to the head,substantially as set forth.

In testimony that I claim the foregoing I have'hereunto set my hand, atMilwaukee, in

the county of Milwaukee and State of Wisconsin, in the presence of twoWitnesses.

FRANCIS A. WALSH. Witnesses:

N. E. OLIPHANT, WM. KLUG.

